Store.js - cross browser local storage without using cookies or flash

[Myrth]

It would be nice to know limitations (by browser/version?)

I.e. maximum storage size, scope (global, 2nd level domain, any domain), life cycle (when is it cleared), etc.

[kenpratt]

Lawnchair (http://brianleroux.github.com/lawnchair/) is similar to this, but you have to pick an adapter (see http://github.com/brianleroux/lawnchair for browser list).

[mblakele]

In the past I have used PersistJS (http://pablotron.org/?cid=1557) for this. Are there reasons to prefer one or the other of these libraries?

[barredo]

From the readme:

"So far tested in

Tested in Firefox 2.0 Tested in Firefox 3.0 Tested in Firefox 3.6 Tested in Chrome 5 Tested in Safari 4 Tested in Safari 5 Tested in IE6 Tested in IE7 Tested in IE8 Tested in Opera 10"

Does it mean it works on IE6+? Does IE6 have local storage?

[cheald]

Take a look at the source. It uses an IE-proprietary something or other to mock the behavior.

http://msdn.microsoft.com/en-us/library/ms531424%28v=VS.85%2...

Been available since IE 5.5, apparently. Who knew?

[pmjordan]

Looks like it. If you look a the store.js source code, it links to http://msdn.microsoft.com/en-us/library/ms531424(v=VS.85).as... which appears to be another one of those hidden gems in IE, like the original AJAX implementation, or XDomainRequest.

[narcvs]

IE6 has userData behavior, which can be used to store data on the client just like with local storage

[alc277]

I've seen some frameworks that use flash storage as a last resort for IE6. I've found success just building in a ajax fail-over and then let IE6 or any other browser make use of the fail-over.

[kingsley_20]

Probably uses Adobe Flash storage in browsers that don't support a db.

[n8agrin]

It seems as though the author does not believe in semicolon use in Javascript. Looks interesting though.

[marcuswestin]

I use semicolons when they're needed (for loops, multiple statements per line), and don't use them when they're not. The code becomes cleaner to my eyes.

[chip]

Do you plan to add length? ie localstorage.length, etc. I'll like to implement this on http://readmelater.com

Looks great by the way!

[empire29]

Anyone know of size limitations on this storage? I am in the middle of writing a jQuery plugin and storing data in cookies which have the 4KB size limitation (which resulted in me having to "chunk" the data across several cookies). This looks like the perfect alternative!

[Groxx]

I think Safari defaults to 10MB, though I may have changed it and forgotten doing so.

[eli]

Be careful, there's a limit on how many total cookies you can have per domain too.

[philfreo]

also be aware that data is getting submitted to your domain on every request -- not great for performance

[richbradshaw]

Usually 5MB

[tobyhede]

For a different take on local storage, have a look at MilkCrate http://github.com/garrow/milkcratejs

MilkCrate is a wrapper around html localStorage/globalStorage that provides support for saving and querying collections of objects. MilkCrate attempts to implement a similar querying interface to mongoDB.

[Dylan16807]

It works now that I stuck it on a server, but apparently FF3.6.4 drops the data between passes on a file:// url. IE6 and Opera10 hang on to it, nothing else available here.

[paraschopra]

I just tested. Like cookies, it also obeys domain-only visibility. So, all hopes for cross-domain user tracking are still doomed. sigh

[dandelany]

I'm completely unconvinced that cross-domain local storage is even remotely a good idea. I can't think of any data I'd want to store in a clientside database that I would want other sites to be able to see/modify.

  So, all hopes for cross-domain user tracking are still doomed. sigh

Um, this is a good thing. I don't want the sites I visit to be communicating my use patterns to each other.

[orangecat]

So, all hopes for cross-domain user tracking are still doomed. sigh

I would certainly hope so...

[cheald]

Why on earth would you imply that cross-domain user tracking is a good thing?

[Groxx]

(to repliers)

</sarcasm>

[wolfhumble]

Tested it on IE 6 and got: "Tests passed" So I guess it works . . . :-)

[narcvs]

Yup, it works in IE6.

I don't have access to IE5.5, would love to have someone test it.

[eli]

In theory localStorage should work on iPhone and Android 2.0+ too

[erlanger]

  Fix issue 1, rename store.del() to store.remove()
  marcuswestin (author)
  18 minutes ago

Will the API be stabilized? Or can you alias method names in cases like this, rather than clobbering them?

[alunny]

It's a sixty line JS file that's been online for less than a day. I don't think API stability is a major concern at this point.

[marcuswestin]

erlanger: you can consider the API stable now.